\begin{table}
\centering
\begin{tabular}[t]{lcccccccc}
\toprule
  & Model 1 & Model 2 & Model 3 & Model 4 & Model 5 & Model 6 & Model 7 & Model 8\\
\midrule
Graduate & \num{0.181}*** & \num{0.155}*** & \num{0.166}*** & \num{0.115}*** & \num{0.043}*** & \num{0.017} & \num{0.126}*** & \num{0.062}***\\
 & {}[\num{0.168}, \num{0.195}] & {}[\num{0.129}, \num{0.181}] & {}[\num{0.150}, \num{0.183}] & {}[\num{0.085}, \num{0.144}] & {}[\num{0.031}, \num{0.056}] & {}[\num{-0.007}, \num{0.040}] & {}[\num{0.115}, \num{0.137}] & {}[\num{0.043}, \num{0.081}]\\
Sex & \num{0.034}*** & \num{0.034}*** & \num{0.005} & \num{0.005} & \num{-0.005} & \num{-0.005} & \num{0.038}*** & \num{0.038}***\\
 & {}[\num{0.025}, \num{0.043}] & {}[\num{0.025}, \num{0.043}] & {}[\num{-0.005}, \num{0.014}] & {}[\num{-0.005}, \num{0.014}] & {}[\num{-0.014}, \num{0.004}] & {}[\num{-0.014}, \num{0.004}] & {}[\num{0.031}, \num{0.044}] & {}[\num{0.031}, \num{0.045}]\\
Age & \num{0.003}* & \num{0.003}* & \num{0.001} & \num{0.001} & \num{0.001} & \num{0.001} & \num{0.002}* & \num{0.002}*\\
 & {}[\num{0.001}, \num{0.005}] & {}[\num{0.001}, \num{0.005}] & {}[\num{-0.001}, \num{0.003}] & {}[\num{-0.001}, \num{0.003}] & {}[\num{-0.001}, \num{0.003}] & {}[\num{-0.001}, \num{0.003}] & {}[\num{0.000}, \num{0.003}] & {}[\num{0.000}, \num{0.003}]\\
Income (ten cat.) & \num{0.004}* & \num{0.003}* & \num{0.007}*** & \num{0.006}*** & \num{0.001} & \num{0.001} & \num{0.008}*** & \num{0.008}***\\
 & {}[\num{0.001}, \num{0.006}] & {}[\num{0.001}, \num{0.006}] & {}[\num{0.003}, \num{0.010}] & {}[\num{0.003}, \num{0.010}] & {}[\num{-0.002}, \num{0.004}] & {}[\num{-0.002}, \num{0.004}] & {}[\num{0.005}, \num{0.010}] & {}[\num{0.005}, \num{0.010}]\\
Children & \num{-0.024}** & \num{-0.024}** & \num{-0.041}*** & \num{-0.040}*** & \num{-0.009} & \num{-0.008} & \num{-0.023}*** & \num{-0.023}***\\
 & {}[\num{-0.039}, \num{-0.009}] & {}[\num{-0.039}, \num{-0.009}] & {}[\num{-0.057}, \num{-0.025}] & {}[\num{-0.056}, \num{-0.024}] & {}[\num{-0.023}, \num{0.005}] & {}[\num{-0.022}, \num{0.006}] & {}[\num{-0.033}, \num{-0.013}] & {}[\num{-0.033}, \num{-0.012}]\\
Unemployed & \num{-0.047}*** & \num{-0.047}*** & \num{-0.043}*** & \num{-0.043}*** & \num{-0.017}* & \num{-0.017}* & \num{-0.032}*** & \num{-0.032}***\\
 & {}[\num{-0.062}, \num{-0.032}] & {}[\num{-0.062}, \num{-0.032}] & {}[\num{-0.060}, \num{-0.026}] & {}[\num{-0.060}, \num{-0.026}] & {}[\num{-0.033}, \num{-0.002}] & {}[\num{-0.033}, \num{-0.001}] & {}[\num{-0.045}, \num{-0.020}] & {}[\num{-0.044}, \num{-0.020}]\\
Academic\_Freedom at C & \num{0.081}*** & \num{0.073}** & \num{0.088}*** & \num{0.072}*** & \num{0.118}*** & \num{0.110}*** & \num{0.065}*** & \num{0.045}**\\
 & {}[\num{0.036}, \num{0.126}] & {}[\num{0.027}, \num{0.119}] & {}[\num{0.047}, \num{0.129}] & {}[\num{0.030}, \num{0.114}] & {}[\num{0.077}, \num{0.160}] & {}[\num{0.068}, \num{0.153}] & {}[\num{0.033}, \num{0.097}] & {}[\num{0.014}, \num{0.077}]\\
Electoral Democracy Score & \num{-0.435}* & \num{-0.434}* & \num{-0.191} & \num{-0.189} & \num{-0.669}*** & \num{-0.667}*** & \num{-0.189}** & \num{-0.186}**\\
 & {}[\num{-0.766}, \num{-0.104}] & {}[\num{-0.765}, \num{-0.103}] & {}[\num{-0.470}, \num{0.088}] & {}[\num{-0.468}, \num{0.090}] & {}[\num{-0.934}, \num{-0.404}] & {}[\num{-0.932}, \num{-0.402}] & {}[\num{-0.328}, \num{-0.049}] & {}[\num{-0.325}, \num{-0.046}]\\
GDP pc(log) & \num{0.359}* & \num{0.363}** & \num{-0.328}*** & \num{-0.320}*** & \num{-0.550}*** & \num{-0.546}*** & \num{-0.135}+ & \num{-0.126}+\\
 & {}[\num{0.084}, \num{0.635}] & {}[\num{0.087}, \num{0.639}] & {}[\num{-0.514}, \num{-0.142}] & {}[\num{-0.506}, \num{-0.135}] & {}[\num{-0.832}, \num{-0.268}] & {}[\num{-0.829}, \num{-0.263}] & {}[\num{-0.272}, \num{0.002}] & {}[\num{-0.263}, \num{0.012}]\\
Population (log) & \num{0.146} & \num{0.151} & \num{-0.860}* & \num{-0.850}* & \num{0.530} & \num{0.535} & \num{-0.767}*** & \num{-0.755}***\\
 & {}[\num{-0.554}, \num{0.846}] & {}[\num{-0.549}, \num{0.851}] & {}[\num{-1.632}, \num{-0.088}] & {}[\num{-1.620}, \num{-0.080}] & {}[\num{-0.129}, \num{1.188}] & {}[\num{-0.123}, \num{1.193}] & {}[\num{-1.108}, \num{-0.427}] & {}[\num{-1.096}, \num{-0.414}]\\
Academic Freedom at C * Graduate &  & \num{0.049}* &  & \num{0.098}*** &  & \num{0.050}* &  & \num{0.122}***\\
 &  & {}[\num{0.011}, \num{0.088}] &  & {}[\num{0.051}, \num{0.144}] &  & {}[\num{0.010}, \num{0.090}] &  & {}[\num{0.087}, \num{0.156}]\\
\midrule
Num.Obs. & \num{221333} & \num{221333} & \num{223625} & \num{223625} & \num{218381} & \num{218381} & \num{226111} & \num{226111}\\
R2 & \num{0.199} & \num{0.199} & \num{0.159} & \num{0.159} & \num{0.085} & \num{0.085} & \num{0.088} & \num{0.089}\\
R2 Adj. & \num{0.199} & \num{0.199} & \num{0.158} & \num{0.158} & \num{0.085} & \num{0.085} & \num{0.088} & \num{0.088}\\
Std.Errors & by: country\_cohort & by: country\_cohort & by: country\_cohort & by: country\_cohort & by: country\_cohort & by: country\_cohort & by: country\_cohort & by: country\_cohort\\
\bottomrule
\end{tabular}
\end{table}
